Question

(e) If the cost of 1000 bricks is 4000, then find the cost of 1800 bricks.​

Answer 1

Answer:

Rs 18000

Step-by-step explanation:

Given:

The price of 1000 brick is Rs. 1500,

To Find :

The price of 12,000 bricks?

Solution:

To find the cost of 12,000 bricks, first, we need to find the cost of 1 brick

if 1000 bricks are Rs 1500

Then 1 brick is 1500/1000=1.5

So, 1 brick = Rs 1.5

Now, The cost of 12,000 bricks : 12,000 x 1.5 = Rs 18000

So, 12,000 bricks = Rs 18000

Hence, the cost of 12,000 bricks is Rs 18000

Answer 2

The cost is Rs.7200

Step-by-step explanation:

Given:

The cost of 1000 bricks is Rs.4000

To find:

the cost of 1800 bricks

Solution:

First, we find the individual or per brick cost to get the total cost of 1800 bricks

To do so, we divide the cost of 1000 bricks that is Rs.4000 with 1000

Cost per brick = 4000/1000

∴ Cost per brick = Rs.4

Now, per brick or 1 brick costs Rs.4

So, 1800 bricks will cost

= 1800 X 4

= 7200

∴ The cost of 1800 bricks is Rs.7200

The cost of 1800 bricks is Rs.7,200

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